Nut-lock



'W. F. muswom- NUT LOCK. APPLICATION FILED JAN-24, 1921:

Patented Dec-.13, 1921.

' 4 IINVENITOR.

ATTORNEY.

PATENT OFFICE.

WILLIAM F. FABNSWORTH, OF WASHINGTON, DISTRICT OLE COLUMBIA.

NUT-LOCK.

Specification of Letters Patent.

Patented Dec. 13, 1921.

Original application filed November 27, 1920, Serial No. 426,709.Divided and this application filed. January 24, 1921.

To all whom it may concern Be it'known that I, WILLIAM F. Farmswonrn, acitizen of the United States, residing at lVashington, in the Districtof Co lumbia, have invented certain new and useful Improvements inNut-Locks, of which the following is a specification.

This invention relates to nut locking structures particularly adaptedfor use in connection with rail joints, and is a division of myco-pending application, Serial o. et26,7()9,

filed Nov. 27, 1920.

An object of the invention is to provide elements held in place by oneof the nuts ordinarily employed for tying rails together and in turnengaging a plurality of said nuts to thereby hold all of the nutsagainst turning.

Further objects of the invention will he set forth in the detaileddescription which now follows.

In the accompanying drawings:

Figure 1, is a side elevation of arail joint illustrating the nutlocking structure adapt ed to look a plurality of nuts against turna;

Fig. 2 as a horizontal section taken on line 2- 2 of Fig. 1 and,

Fig. 3 is a. perspective assembly of the elements constituting thelocking structure.

In the accompanying drawings the numerals 5 and 6 designate the abuttingends of a pair of rails havin the usual fish plates 7 overlapping theends, said fish plates being traversed by bolts 8 and nuts 9 are adaptedto bind the same together. In this form of my invention, I employ agroin) of three bolts, but it is obvious that this number may beincreased or decreased.

A face plate 19 is provided with an aperture 20 for receiving the endbolt of the group. This face plate has its end turned at a right angleas shown at 21 and is provided With a slot 22, for a purpose to bedescribed. The face plate is offset as shown at 23. The materialadjacent the end of the face plate is bent outwardly at 24, upwardly at25 and inwardly at 26. This forms aboxlike structure for holding alocking bar in place, to be described.

The numeral 27 designates a locking bar or strip, having one of its endsreduced as Serial No. 439,711.

shown at 28, for insertion in the slot A depending ear 29 is formed onthe bar 27. as shown and such ear has a slot 30 formed therein, forengagement with the portion 26. This slot 30 is slightly longer than thepart 26, this for the purpose of permitting slight longitudinal movementof the bar with relation to the face plate 19. When in the lockedposition, the part 26 engages with the fish plate, which position willpreven displacement of the bar 27.

In operation, the face plate is pla 'ed over the end bolt and the nutplaced thereon and turned down tight. The other nuts are also put on andturned down t l h all having their sides arranged as sho' n in i 1. Theend 28 of the locking bar is then inserted in the slot 22. A suitabletool is then inserted between the face plate and the fish plate, at apoint A, and the plate is sprung outwardly a suliicient distance toallow the insertion the ear 29 within the space formed by the portion24:, 25 and 26. Removal of the tool allows the face plate to spring backinto place, thereby securely holding the ear 27 against displacement. Asshown in l the bar 27 rests on the tops of all the nuts in the group tothereby prevent rotation. The

reason for making the slot 30 slightly longer than the part 26, is toallow for expansion and contraction of the rails.

It is to be understood that the invention is not limited to the preciseconstruction set forth but that it includes within its purview whateverchanges fairly come within either the terms or the spirit of theappended claim.

Having described my invention, what I claim is:

The combination with a nut locking structure adapted to hold a row ofthe nuts against turning upon their respective bolts comprising a faceplate traversed by one of said bolts and held by the nut thereon. a lockbar having an openinq formed in a portion thereof, and a projectingelementcarried hy the face plate for engaging in said opening to holdthe lock bar in position to en gage the sides of a plurality of saidnuts.

In testimony whereof I afiix my signature.

WILLIAM F. FARNSIVORTH.

